Other Expenses (Other Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Expenses
Compensation	$ 1,134	$ 1,189	$ 2,323	$ 2,499
Pension, postretirement and postemployment benefit costs	78	103	158	243
Commissions	1,025	1,094	2,035	2,228
Volume-related costs	203	214	401	480
Capitalization of DAC	(821)	(915)	(1,617)	(1,896)
Amortization of DAC and VOBA	704	121	1,237	1,116
Professional services	431	398	818	728
Amortization of negative VOBA	(38)	(67)	(81)	(166)
Interest expense on debt	295	306	591	618
Premium taxes, licenses and fees	167	189	355	404
Rent and related expenses, net of sublease income	71	98	152	195
Other General and Administrative Expense	810	516	1,251	989
Total other expenses	4,059	3,246	7,623	7,438
Spinoff [Member]
Other Expenses
Total other expenses	$ 330	$ 55	$ 407	$ 58